So for that Paintshield 5720 are you putting it on just for the track day and then peeling it off after? Or are you leaving it on for weeks at a time?

Also do you have any details on how the best way to apply it is?

Just the track actually and remove it after. It's pretty inexpensive stuff, so I'm willing to try it out and see what happens. I'm sure I'll get a nick here or there, but definitely better than not having it at all or taping up the car every single time.